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  <title>Parse a Yaml stream from a URL</title>
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 <body class="docs"><div id="layout">
  <div id="layout-content"><div id="function.yaml-parse-url" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">yaml_parse_url</h1>
  <p class="verinfo">(PECL yaml &gt;= 0.4.0)</p><p class="refpurpose"><span class="refname">yaml_parse_url</span> &mdash; <span class="dc-title">Parse a Yaml stream from a URL</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.yaml-parse-url-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>yaml_parse_url</strong></span>
    ( <span class="methodparam"><span class="type">string</span> <code class="parameter">$url</code></span>
   [, <span class="methodparam"><span class="type">int</span> <code class="parameter">$pos</code><span class="initializer"> = 0</span></span>
   [, <span class="methodparam"><span class="type">int</span> <code class="parameter reference">&$ndocs</code></span>
   [, <span class="methodparam"><span class="type">array</span> <code class="parameter">$callbacks</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
  ]]] ) : <span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span></div>

  <p class="para rdfs-comment">
   Convert all or part of a YAML document stream read from a URL to a PHP variable.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.yaml-parse-url-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<code class="parameter">url</code></dt>

     <dd>

      <p class="para">
       <code class="parameter">url</code> should be of the form &quot;scheme://...&quot;. PHP
       will search for a protocol handler (also known as a wrapper) for that
       scheme. If no wrappers for that protocol are registered, PHP will emit
       a notice to help you track potential problems in your script and then
       continue as though filename specifies a regular file.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">pos</code></dt>

     <dd>

      <p class="para">
       Document to extract from stream (<em>-1</em> for all
       documents, <em>0</em> for first document, ...).
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">ndocs</code></dt>

     <dd>

      <p class="para">
       If <code class="parameter">ndocs</code> is provided, then it is filled with the
       number of documents found in stream.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">callbacks</code></dt>

     <dd>

      <p class="para">
       Content handlers for YAML nodes. Associative <span class="type"><a href="language.types.array.html" class="type array">array</a></span> of YAML
       tag =&gt; <span class="type"><a href="language.types.callable.html" class="type callable">callable</a></span> mappings. See
       <a href="yaml.callbacks.parse.html" class="link">parse callbacks</a> for more
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.yaml-parse-url-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns the value encoded in <code class="parameter">input</code> in appropriate
   PHP type 或者在失败时返回 <strong><code>FALSE</code></strong>. If <code class="parameter">pos</code> is
   <em>-1</em> an <span class="type"><a href="language.types.array.html" class="type array">array</a></span> will be returned with one entry
   for each document found in the stream.
  </p>
 </div>


 <div class="refsect1 notes" id="refsect1-function.yaml-parse-url-notes">
  <h3 class="title">注释</h3>
  <div class="warning"><strong class="warning">Warning</strong>
   <p class="para">
    Processing untrusted user input with <span class="function"><strong>yaml_parse_url()</strong></span>
    is dangerous if the use of <span class="function"><a href="unserialize.html" class="function">unserialize()</a></span> is enabled for
    nodes using the <em>!php/object</em> tag. This behavior can be
    disabled by using the <em>yaml.decode_php</em> ini setting.
   </p>
  </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.yaml-parse-url-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="yaml_parse.html" class="function" rel="rdfs-seeAlso">yaml_parse()</a> - Parse a YAML stream</span></li>
    <li class="member"><span class="function"><a href="yaml_parse_file.html" class="function" rel="rdfs-seeAlso">yaml_parse_file()</a> - Parse a YAML stream from a file</span></li>
    <li class="member"><span class="function"><a href="yaml_emit.html" class="function" rel="rdfs-seeAlso">yaml_emit()</a> - Returns the YAML representation of a value</span></li>
   </ul>
  </p>
 </div>


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